Casting machine



Mamh 4, 1924:; 31,485,592

J. A. BYERS CASTING MACHINE Filed July 27. 1922 w E: i REL: J C Q 6 m f E: A- J F g v 1 1 1' \O N) g I mmmlll flIIHIIHHUUHHH w I imp/E507" Fatented are; a, read JOHN a. BYERS,

I ates area OF CHICAGO, ILLINOIS, ASSIGNOR TO JAMES B. CLQW & SON'S, G52 CHICAGO, ILLINOIS, A GOBPOR-ATION F ILLINQIQ CASTING MACHTNE.

Application filed July 27, 1922. Serial No. 577,845.

To all whom it may concern Be it known that I, JOHN A. Brnns, a citizen of the United States, and resident of Chicago, in the county of Cook and State of Illinois, have invented a' certain new and useful Improvement in Casting Machines, of which the following is 'a full, clear, concise, and exact descriptiomreference being had to the accompanying drawing, forming a part of this specification.

The present invention relates to machines for casting molten metal by centrifugal force against the internal surface of a rotating mold. Its principal object is the provision of improved means for' distributing molten metal to the surface of the rotating mold, such means being especially advantageous in connection with elongated molds.

In the drawing,-

Figure 1 is a side elevation partly in section of a machine embodying the invention.

Figure 2 is a detailed view of certain of the mechanism looking at the side opposlte that shown in Figure 1. I

' Figure 3 is a section on the line 3-3 of Figure 2.

In the preferred form of the invention which is illustrated in the drawings and described herein, anannular casing 1, preferably of cast iron, is fixedly mounted on suitable supports 2. A tubular mold 3, which is preferably of forged'steel, is rotatably mounted within the casing 1 on a plurality of anti-friction bearings 4. The mold may be provided with a pulley 5 or other suitable ineans for rotating it.

A track 6 extends longitudinally from one end of the casing and mold and a carriage is mounted to travel on the trackby wheels, 8 and 9 .enga ing the upper and under surfaces of the anges of the track. A pairof standards 10 are mounted on the carriage 7 and a distributor 11 is rotatably mounted in suitable bearings in the standards 10. The distributor 11 projects forwardly from the carriage 7 and in operative position is adapted to'extend through the mold 3, the

forward end of the distributor riding on a roller 12. When the distributor is in operative position its forward end projects beyond the forward end of the mold and this end of the distributor is formed with a filling opening 13.. That ortionof the distributor which lies within the mold -3 when the dis-. tributor is in operative position during'the casting operation is formed with an opening in its top extending substantially the length of the mold. One edge of'this opening is formed with longitudinally separated discharge outlets or spouts 14 and the distributor on rotation is adapted to discharge longitudinally separated streams of molten metal onto the mold surface at an' acute angle and in the direction of rotation thereof. In order to "render the distributor rotatable it is provided with a worm gear 15 meshing with a worm 16 journaled on the carriage 7 and provided with an operating handle 17. The gear 15,'however, is feathered on the distributor 11 by a key 18 so that the distributor is forced to rotate with the gear but may slide longitudinally with respect thereto. A standard 19 on the carriage is formed with a cam race 20 engaged by a roller 21 projecting radially from the distributor 11. The cam race 20 is preferably designed, as most'clearly illustrated in Figure 2, so that by rotation of the distributor through 45 degrees it will be longitudinally retracted a certain distance and by rotation through an additional 45 degrees it will be advanced the same distance to its original longitudinal position. The distributor is preferably desi ned to be rotated through 90 degrees to e ect its discharge of molten metal into the mold and the distance through which the distributor is reciprocated longitudinally is preferably the distance be-;

tween centers of two adjacent discharge outlets 14.

In operation the distributor is projected into operative filling position as illustrated 7 in Figure 1 and is then filled through the projecting end with molten metal. The mold is then rapidly' rotated. By means of the handle 17 the distributor is then rotated, preferably gradually, to discharge the molten metal through the longitudinally separated discharge outlets onto the mold surface at-an acute angle and in the direction ofrotation of the mold. At the same time the distributor is automatically reci rocated longitudinally throng a limited istance. Consequently, the mo ten metal is evenly and quietly distributed onto the rotating mo ld surface. The reciprocation of the distributor aids in the smooth and even distribution of the metal onto the mold surface and prolongs the life of the mold by distributing the longitudinally separated streams of inflowinp' metal over the entire mold surface instea' of allowing the respec tive streams always to meet the mold surface on the. same circle,

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is l. lin a casting machine, the combination of a rotary mold, a distributor adapted to extend within the mold, means for rotating adapted to extend within the mold and pro{ vided with longitudinally separated drscharge outlets, means for rotating the dis tributor, and means for causing reciprocation of the distributor longitudinally by its rotation,

3. lm a casting machine, the combination of an elongated rotary mold, a distributor adapted to extend within the mold and provided with longitudinally separated discharge outlets adapted to direct molten metal onto the mold surface at an acute angle and in the direction of rotation thereof, means for rotating the distributor, and means for causing reciprocation of the distributor longitudinally by its rotation.

i. In a casting machine, the combination of an elongated rotary mold, a distributor adapted to extend within the mold and provided .with longitudinally separated discharge outlets, means for turning the distributor on its axis to discharge molten metal therefrom, and means operable by turning of thedistributor to reciprocate the distributor longitudinally approximately the distance between adjacent discharge outlets.

5. In a casting machine, the combination of an elongated rotary mold, a distributor adapted to extend Within the mold and anemone provided with longitudinally separated. discharge outlets, means forrotating the dis tributor, a roller projecting radially from the distributor, and a relatively fixed camway engaging the roller and formed to reciprocate the distributor.

6. ln a casting machine, the combination of an elongated rotary mold, a distributor adapted to extend within the mold and nrovided' with longitudinally separated dis charge outlets, a WOIID gear feathered on the distributor, a worm meshing therewith, a roller'projecting radially from the distributor, and a relatively fixed cam-Way engaging the roller and formed to reciprocate the distributon T. in a casting machine, the combination "of an elongated rotary mold, a longitudinally movable carriage, a distributor sup ported by the carriage and adapted to be projected within the mold, the distributor being provided with longitudinally separated discharge outlets, a worm gear feathered on the distributor, aworm journaled on the carriage and meshing with the gear, a roller projecting radially from the distributor, and a cam-way fixed on the carriage and engaging the roller and formed to reciprocate the distributor.

ln witness whereof, I hereunto subscribe my name this 24 day of July, 1922.

JOHN A. BYERS. 

